ZIP code · Ontario · California · United States
ZIP code 91761 — Ontario
ZIP code 91761 serves Ontario, California.
- Postal code
- 91761Single source Value from one source, not cross-checked.
- City
- Ontario
- County
- San Bernardino
- State
- California
- Country
- United States
- Coordinates
- 34.0316, -117.6187 — precision precise (locality)
View on OpenStreetMap - Population
- 62,506 (ZCTA, ACS 5-year)
- Median household income
- $97,396
- Median age
- 33.4
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page